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Investments (Tables) | 6 Months Ended
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Jun. 30, 2023
Investments, Debt and Equity Securities [Abstract] |
Pre-tax Gains and Losses for Marketable Securities | Pre-tax gains and losses for marketable securities are summarized below (in millions):
| Three Months Ended June 30, 2023 |  | Six Months Ended June 30, 2023
| (in millions)
Loss/(gain) on marketable securities sold during the period | $ | 104 |  |  | $ | (293) |
Unrealized loss/(gain) on equity securities held as of the end of the period | 90 |  |  | (300) |
Dividend income | (5) |  |  | (14) |
Total loss/(gain) on marketable securities | $ | 189 |  |  | $ | (607) |

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- Definition Tabular disclosure of marketable securities. This may consist of investments in certain debt and equity securities, short-term investments and other assets. + References No definition available. + Details
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